/*
 * Copyright 2019 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

import classNames from "classnames"
import * as _ from "lodash"
import * as React from "react"
import { HTMLAttributes } from "react"
import { componentClassName } from "../style"
import "./index.scss"

interface ButtonProps extends HTMLAttributes<HTMLButtonElement> {
  type?: "primary" | "link";
  size?: "default" | "large" | "small" | "mini"
  shape?: "circle" | "default"
  disabled?: boolean
}

export default class Button extends React.Component<ButtonProps> {

  protected static defaultProps: ButtonProps = {
    size: "default",
    shape: "default",
    disabled: false,
  }

  public constructor(props: Readonly<ButtonProps>) {
    super(props)
  }

  public render() {
    const { children, type, size, shape, disabled, className, onClick, ...restProps } = this.props
    return (
      <button className={classNames(componentClassName("button"), {
        [componentClassName("button-type-primary")]: type === "primary",
        [componentClassName("button-type-link")]: type === "link",
      }, {
        [componentClassName("button-size-default")]: size === "default",
        [componentClassName("button-size-mini")]: size === "mini",
        [componentClassName("button-size-small")]: size === "small",
        [componentClassName("button-size-large")]: size === "large",
      }, {
        [componentClassName("button-shape-circle")]: shape === "circle",
      }, {
        [componentClassName("button-disabled")]: disabled,
      }, className)} onClick={e => {
        if (!disabled && _.isFunction(onClick)) {
          onClick(e)
        }
      }} {...restProps}>{children}</button>
    )
  }
}
